Motive Gear F9-486 Differential Ring & Pinion, For Ford 9", Gear Ratio 4.86, 10-Bolt, 28 Spline, 7 Pinion & 34 Ring Tooth –Fits Ford Bronco/F-100/F-150/Econoline, Replaces Yukon 24110,Nitro F9-486-NG

High-Performance Motive Gear F9-486 Ring & Pinion Set – 4.86 RatioEngineered for the legendary Ford 9" differential, the Motive Gear F9-486 ring and pinion set delivers uncompromising strength, aggressive acceleration, and precise gear engagement. Ideal for high-torque applications such as racing, off-roading, and heavy-duty performance, this set is built from premium 8620 steel for maximum durability and consistent performance under stress.Key FeaturesGear Ratio: 4.86Ring Gear Diameter: 9"Ring Gear Tooth Count: 34Pinion Gear Tooth Count: 7Pinion Shaft Diameter: 1.313"Pinion Spline Count: 28Ring Gear Material: 8620 SteelBolt Count: 10 Ring Gear BoltsVehicle CompatibilityFits Ford 9" Rear Axles with 4.86 Gear Ratio and Standard Carrier Configuration.Ford1957–1970 Fairlane1959–1967 Galaxie1962–1974 Galaxie 5001972–1976 Gran Torino1975–1980 Granada1965–1979 LTD1977–1979 LTD II1970–1977 Maverick1965–1973 Mustang1957–1979 Ranchero1955–1979 Thunderbird1968–1976 Torino1966–1986 Bronco1969–1983 E-100 Econoline1975–1983 E-100 Econoline Club Wagon1975–1986 E-150 Econoline / Club Wagon1969–1974 E-200 Econoline1975–1983 F-1001975–1986 F-150Lincoln1958–1979 Continental1968–1971 Mark III1977–1980 VersaillesMercury1964–1969 Comet1971–1977 Comet1967–1979 Cougar1975–1978 Grand Marquis1963–1970 Marauder1967–1978 Marquis1968–1976 MontegoReplaces OEM & Aftermarket Part NumbersYukon Gear & Axle: 24110, YG F9-486Richmond Gear: 69-0067-1, SFD908Motive Gear: F890486, F9-486A, F9-486RNitro Gear & Axle: F9-486-NGEXCEL from Richmond: F9486Warranty & Quality AssuranceBacked by a 1-Year / 50,000-Mile Warranty, Motive Gear products are manufactured to exacting standards using advanced materials and processes. Trusted by performance professionals and enthusiasts worldwide, Motive Gear delivers consistent strength, reliability, and long-term value.

• Built for Ford 9" axle setups, this Motive Gear set features a 4.86 gear ratio, 10 ring gear bolts, 28 spline count, and premium 8620 steel construction—engineered for strength and performance in off-road or racing environments.
• Includes 7-tooth pinion gear with a 1.313" shaft diameter and 28 splines for optimal torque transfer and durability under extreme loads. Matched with a 34-tooth, 9" diameter ring gear for aggressive gearing and fast acceleration.
• Designed to fit Ford vehicles using the 9" dropout-style rear differential—ideal for Bronco, F-100, F-150, Mustang, and more across 1966–1986 model years. Standard rotation ensures OE-level integration and reliability.
• Package includes matched ring and pinion gear set for complete installation. Precision-machined for a quiet, consistent mesh pattern and long service life in both street and performance applications.
• Replaces OEM and aftermarket parts: Yukon 24110, YG F9-486; Richmond 69-0067-1, SFD908; Nitro F9-486-NG; Motive F890486, F9-486A, F9-486R; EXCEL F9486. Covered by a 1-Year / 50,000-Mile Warranty from Motive Gear.